Home / 859,711.20-1,289,577.60-260,678.40

Finding the Fourth Proportional to 859,711.20, 1,289,577.60 and 260,678.40

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Solution

The fourth proportional to 859,711.20, 1,289,577.60 and 260,678.40 is: 391,020.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,711.20 : 1,289,577.60 = 260,678.40 : x
  2. Step 2: Convert to fraction form
    859,711.20/1,289,577.60 = 260,678.40/x
  3. Step 3: Cross multiply
    859,711.20x = 1,289,577.60 × 260,678.40
  4. Step 4: Simplify right side
    859,711.20x = 336,165,025,443.84
  5. Step 5: Solve for x
    x = 336,165,025,443.84/859,711.20
  6. Step 6: Final answer
    x = 391,020.87

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